Calculating machine



`kan. 27, 1942.` J. w. BRYCE CALCULATING MACHINE l L, Pl f @l Flam.

Jan. 27, 1942. J. w. BRYCE 2,271,248

CALGULATING MACHIN Filed March l, 1928 16 Sheets-Sheet 2 Jan. 27, 1942. J. WQBRYCE' 2,271,248

GALCULATING NIACHIM:A

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GALCULATING MACHINE Filed March 1, 1928 16 sheets-sheet 16 Sheets-Sheet 8 Wil m J. WL BRYCE CALCULATING MACHINE Filed March l, 1928 Jan. 27, 1942.

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s @if/mw Patented Jan. 27, 1942 2,271,248 CALCULATING MACHINE James W. Bryce, Bloomfield, N. J., assigner, by

mesne assignments, to International Business Machines Corporation, New York, N. Y., a corporation of New York Application March 1, 1928, serial No. 258,165

(ci. 28s-81.10)

49 claims.

This invention relates to improvements in calculating machines and more particularly, the

invention is directed to improvements in multiplying machines.

One of the objects of the present invention is to provide a multiplying machine which is capable of effecting computations at a very rapid rate,

machine which will eiect computations which have heretofore required manual intervention or control, without such manual manipulation or control. l Among such manual operations which are dispensed with in the present machine there may be mentioned the entry of factors and the reading out and recording the result.

A further object resides in the provision of aA These and other operations, as will be hereinafter described, are effected automatically and without manual intervention.

A further object of the present invention resides in the provision of a machine having improved means for entering the factors therein.

To speed up an entering operation provision is effected more rapidly than in previous machines of .this class.

A further object of the present invention resides in the provision of a machine with means for automatically and variably adjustingv the calculating or integrating cycles of the machine in accordance with the size and character of the computation being made.

A .further object resides in the provision of means for adjusting such integrating cycles automatically without manual setting or adjustment and without changing the construction so that the machine is capable of handling large sized problems or smaller sized problems in such a way that the cycle of the machine is automatically coordinated to the requirement 'of the problem being solved.

Further objects of thepresent invention residein the provision of a machine in which a plurality of computations may be effected sucin the provision of a construction whereby coordinated accumulating operations may be effected as well as multiplying operations.

A further object of the present invention resides in the provision of a construction which is adapted to utilize electricity for controlling various computing multiplying and integrating operations.

At the present time it is the common practice to record data by means of perforations upon records. Such records may be in the form of separate `tabulating cards or in the form of a perforated strip record. After such records have been perforated they are introduced into record controlled accounting machines and therein provision is made for accumulating, printing and otherwise deriving the perforated datafrom the records.

Heretofore in cases Where multiplicationshave been desired of amounts preperforated upon such records, such multiplications'have been leiie'cted `by mental operations or by means of separate multiplying machines which have been manipulated by the operator to first obtain the multiplication. Thereafter the product in some cases has been written on the record and afterwards punched thereon by a punch operator and in other cases the multiplying machine operator has punched the product perforations upon the records. f

All such methods of obtaining products from perforated record data are-time consuming and considerably detract from the' use of such record controlled accounting machines when corelated multiplying operations are required which involve the perforated record data.

The present invention therefore has for one of its further objects the provision of a new machine which is adapted to permit the' prepunching upon records of the two factors of a computation, for lexamplethe multiplier and the multiplicand. Such punching may be effected by any well known punching machine now in use. After such factors have been punched in the records the records or record material so preperforated is' placed in the machine, which forms the subject matter of the present application and run therethrough. The machine then automatically handles the records and reads the multiplicand and multiplier factor data pertaining to each computation, then eiects multiplying of the factors into a product and nally records such product. Such recording in the present embodiment is eiected by marking back upon the record from which the factors of the computation were derived markings representative of and designating the product.

Furthermore, in the present'I embodiment such markings are inA the form of perforations so that the records are then adapted foruse in accounting machines wherein it is desired to derive the product representing data from vthe records.

All of the operations of record handling, reading of factor data, entering of such factor data into the calculating or integrating section of the' machine, 'effecting multiplication, making of a product record and if desired adding products vention reside in the vprovision of a novel form of record control accounting machines adapted to carry out operations not heretofore capable of being performed on such machines. Certain of such operations have heretofore been set forth and others will be more fully set forth in the accompanying specification.

A further object of the present `invention resides in the provision of an improved form of multiplying commutator in which a relatively less number of sections are provided than heretofore have been necessary in previous machines of this class which I have devised.

While the machine has for one of `its objects the provision of a multiplying machine capable of lcontrol by preperforated records and capable of marking such records, the invention in its broader aspects is not limited to such types of machines.

Further and other objects of the invention will be hereinafter set forth in the accompanying specification and claims and shown in the drawings which' by way of illustration show one and a preferred embodiment of theinvention.

In the drawings:

Figures 1 and la vtaken together show a top plan view of the machine;

Fig. 2 shows aface view of the upper part of the left hand end of the machine;

Fig. 3 is a cross-sectional detail view of th card reading and punching section of the ma- /chine, the section being taken on line 3 3 of Fig. 1;

Fig. 4 is a transverse detail sectional view taken substantially on lines I l of Fig. 3;

Fig. 5 is a fragmentary detail view of the card `lever devices and the section 'is takenv substan.

tially on lines 5 5 of Fig. 4;

Fig. 6 is a detail elevational view showing the card feeding control mechanism. This section is` taken on line 6 6 of Fig. 1;

Fig. '7 is a detail sectional view of the multi- 'plierv register or receiving device and is taken substantially on line 1 1 of Fig. 1;

Fig. s is a similar view of the mumpncand register 4and is taken on line' 8 8 of Fig. la;

Fig. 9 is an elevational view taken substantially from the right hand of the machine as viewed in Fig. la and on line 9 9. Certain parts are shown in phantom in this view in dotted lines, the same being to vthe right of the section linesfof Fig. la; l lFig. 10 is a detail perspective view of certain reading out mechanism shown in Fig. 9 and also in top plan in Fig. 1a; y

Fig. 1l is a front view of one of the reset clutches;

Fig. l2 is a detail sectional view of the multiplying commutator, the section being taken sub-- stantially on line I2-I2 of Fig. 1;

yFig. 13 is a detail view of the part shown in Fig. 12, the View being taken on line |3 I3 of Fig. 12;

Figs. 14, 14a, 14h, lic',` and' 14d taken together .show an electromechanical diagram of the machine with various electrical circuits;

' Fig. 15 is a diagrammatical illustration of the operations which the machine performs;

Fig..16 represents a series of viewsshowing the configuration of the commutatory shown in Fig. 14a.

Before describing the details of the machine a brief explanation will bevflrst given of the general mode of operation of the machine.

After the cards have been punched up with the factor databy a punch card operator, a group of be computed. During the cycles which effect such initial clearing and resetting operations, the first card is withdrawnA from the magazine and passed through the sensing station. Intransit through this station the factor data is read from the card and entered into the multiplier and multiplicand receiving devices. Such receiving devices may be in the form of the usual well known registers used in tabulating machines, but

they are provided with certain extra devices for enabling reading connection to be established from them to the computing mechanism. After the card has been thus read and the factor data derived therefrom it is advanced into a punching die and it is held in this position during that part of the operating cycle of the machine in which the computing and recording is being performed. At the time the card has entered the die, the machine 'has become set not only with the entry of the numbers or factors to be computed, but the machine has also determined from the card the size of the problem to be computed and it has automatically set itself to complete a number `of computing or integrating cycles which are sufficient to carry out that particular computation. v

In further explanation of this feature of the invention, it may be explained that if the machine is constructed to handle three significant figure compute/tions and then if -cards with a less number of significant figures were entered unless special provision was made for it, the machine would always go through' an idle number of computing cycles representative of the largest capacity which the machine would be capable of handling. To dispense with these unnecessary cycles, a cycle controller is provided-which according to one form cori-trois the number of cycles from the left handsignificant figure of the multiplier. Thus if the multiplier were 312 the machine would b e controlled to require th'ree computing cycles. If the multiplier was 12, only two computing cycles would be required and if the multiplier was the number 9 only one computing cycle would be required.

According to another alternative form of cycle controller, the number of computing cycles would be controlled by the significant figures only of the multiplier. In other words if a multiplier involved zeros suchy as for example, the number 303 the cycle controller would automatically eliminate an idle computing cycle for the zero and the result would be that only two computing cycles would be made by the machine.

After the multiplier and multiplicand are entered into the receiving devices of the machine, these receiving devices, according to their setting, operate conjointly with the multiplier commutator and emit partial products into receiving devices. In order to save time in the number of cycles of the machine operation, two receiving devices are provided in the form of accumulators and the right hand components of the various partial products are entered into one receiving device and the left hand component of these partial products are concurrently entered into other receiving devices. The receiving devices function automatically receiving the partial products and the number of accumulating cycles of these receiving devices is coordinated to the number of figures in the multiplier. For example, if 335 was the multiplier there would be three accumulating cycles of both receiving devices. If there was only one significant figure in the multiplier,- regardless of its denominational position, the receiving devices would onlyrequire one accumulating cycle if the alternative form of cycle con-I troller were used.

After the receiving devices have separately gathered together the accumulations of the left and right hand components of the partial products, reading out devices are called into operation, which reading out devices derive the accumulation of partial products from one accumulator and enter it into the other accumulator or receiving device. Thereafter another reading out device comes into operation ,and thereafter the" whole product is readout of the second accumulator and this amount is recorded by the punching mechanism back upon the record card from which the factors of computation were derived. After such recording, the record card is released from theA die and automatically passed to a stack.

Main drivev The machine is adapted to be driven by a drivi'ng motor M (Fig. 9) which motor through a belt and pulley drives the main drive shaft of the machine. The drive shaft constantly rotates While the machine is in operation. The reset shaft 5| (Figs, 1 and 1a, and 9) constantly rotates'during the operation-of the machine and is driven from the main drive shaft by suitable gearing. Drive shaft 50 extends throughthe ,various calculating sections of the machine and at its oppositey end is provided with a gear 52 (Figs. l. and 6) which drives a clutch gear 53. The driving ratio is 3 to 1 so that theclutch gear 53 makes. one revolution for three revolutions of the main driveshaft 50. cooperatively associated with the gear 53 is a one revolution clutch comprising clutch dog .54 and notched clutch disk or member 55. The 'notched disk 55 is fixed to rotate in unison' with gear 53 and the clutch dog 54 is supported upon a. disk 56 (Fig. 4)

which is fastened to the primary drive shaft 51 of the card feed and punching section of thev7 5 l bar.

3 machine. Shaft 51 extends through disk 55 in gear 53 and extends to the right from the point Card feed Referring now to Fig. `1, the main drive shaft 50 also is provided with a suitable gear 64 which through a gear train of theusual type drives the feed rolls 65 pertaining to the card feeding.

section of the machine. Such feed rolls 65 are also shown in Fig. 3. The gearing for driving the feed rolls in unison isshown in Fig. 2 and in Fig. 1.

Referring to Figs. 2 and 3, 66 is a card magazine of usual type. 61 is a picker which is actuated frorn a picker cam 58 on a shaft 69, which by gearing 10 is driven from the primary card feed shaft 51. By the rotation of shaft 51 a card is' advanced from the magazine into the rst of the feed rolls 65 thence it is carried by the feed rolls under the sensing brushes 12 and thereafter it is carried by the succeeding feed rolls, into the dieA plates 13. The card is arrested in proper alignment in the die plates by a stop 14 (Fig. 3) which stop is kept 'in elevated position against the tension-of the spring 15 by a cam follower lbell crank 16 which cooperates with a cam 11 upon the shaft 51. 65e slip relatively thereto and delivery ofthe card is prevented by the stop 14. At the proper time in the cycle of the machine when this stop is lowered the card is ejected from the die and picked up by the succeeding feed rolls and delivered to the stack 1t).

Punching section ofthe machine During the period that the card is in the punching die it is punched. The punching device comprises a number of punches arranged in rows, and for each row an interposer selector 8| is provided. The punch selectors 8| are advanced to selected position over the tops of the4 punches by an impositivo drive mechanism which comprises a bar 82 having mounted thereon pawls 33, one for each column and for each selecting 82 is moved to the left as viewed in Fig. 3 by a linkage 84 having a cam follower cooperating with the cam 86 disposed on shaft 51. The differential movement of the selectors 8| is determined by the stop pawls 81, which pawls cooperate with ratchet teeth upon the selector bars. Tripping of pawls 81 is effected through punch selector magnets 88. The punch selector magnets 8a and associated armature parts are mounted on a frame which is transversely slidable on rods 89.' By sliding this assembly to the proper position the pawls 81 can be aligned with selected columns of punch selecting interposers 8|. Prior to such sliding pawls 81 are retracted -by a handle which also acts as an index for the position of the punch selector magnets. Retraction of the pawlsis effected bya'bail 9| upon a member 92.

It will be understood that if a given selector bar or bars have their interposer ends over the particular punch or punches, that upon elevaconnection with.'

When the card is -in the die, rolls- Referring now to Fig. 5, two card levers are provided in the machine. One card lever 95 is adapted to close card lever contacts 96| when the record card is underneath the sensing brushes 12. 'I'he other card lever 91 is adapted to close its contacts 90 when a card is in the punching die section of the machine and to open such contacts at other times.

Card reading and entry of factor data The card sensing brushes 12 as will be hereinafter described in connection with the circuit diagram, establish electrical connection to the clutch magnets of the multiplier and multiplicand receiving devices. 'I'hese receiving devices are substantially similar in construction, except for their top reading out sections and so far as the entering of numbers therein, these operate in a similar manner to the registers of the tabulator shown in Lake U. S. Patent No. 1,307,740. 'I'hey are provided with the usual differential clutches and are driven in timed relation with the main drive shaft 50 in a conventional manner.

By the usual entering 'action the multiplier and multiplicand designations on the records are set up on th index wheels of the multiplier and multiplicand registers. In the multiplier register, geared to the index wheels (Fig. 7) is a commutator structure which will now be described.

The commutator comprises a stationary insulated ring |0| provided with contact spots numalso provided with a long segment l0 opposite the spots from 1 to 4 and ano her segment |02a which is opposite the spots from 5 to 9.

a common conducting segment 3a. The right hand section is substantially the same and the parts carry similar reference numerals, except that the suffix a is omitted. Referring again to the multiplier register,thls register has the usual counter magnet contacts ||4 and cooperating with each of these contacts is a supplementary cycle controlling contact H5, and so forth (see Figs. 1 and 14). There is-one of these supplementary contacts for each denominational order, ||5 being for the units co1- umn, ||5 for the tens, ||1 for the hundreds and so on according to the capacity of the machine.

-Each of the registers and accumulators and also the multiplicand commutator and the column selector mechanism is adapted for resetting from the constantly rotating reset shaft 5|. Individual electromagnetic clutch mechanism is provided for this purpose as shown in Fig. 11. The reset gear ||0 of each device which is to be reset is provided with a clutch of the one revolution type generally designated ||9 and the members of this clutch are engaged by the energizaltion of a reset magnet |20. There is one individual reset magnet |20 for each particular device which requires resetting and hereafter in the diagram these different reset magnets will termed |20a, |20b, etc.

i M ultiplying commutator t The multiplying commutator which will be more fully described in connection with the circuit diagram comprises a cylindrical insulating member |2| (see Figs. 1 and 12) which is continuously rotated in anti-clockwise direction in timed relation with the main drive shaft 50 by the gearing shown in Fig. 12./ The commutator has various contact spots which will be more For each commutator segment a brush structure is provided comprising two brushes |0311 and |03, electrically connected to each other and differentially positioned by a gear |04 which meshes with the'corresponding clutch gear 05 of the register. The -arrangement of the brush struc-O ture and spots is such that when brush 03a contacts with spots 1 to 4 inclusive, brush |03 will be in Contact with long segment |02 and when brush |03 contacts with spots 5 to 9, inclusive, brush |03a will be in contact with long segment |02a. It will be understood that a similar brush arrangementwill be provided for each denominational order in the multiplier register.

Referring now to themultiplicand register,

Fig. 8, the clutch gears |05 of this register are adapted ,to drive brushes through gear trains connection with |||a` designated ||2a to traverse fully described hereinafter and these spots are grouped in sections on the member |2|.

components, groups of brush devices are provided which can be selectively thrown into cooperation with the commutator by the mechanism4 which will now be described. Each group of brushes pertaining to a section is carried by an individual holder |22 adapted to be rocked by a lever |23 `upon the energization of a magnet |24. It will be understood that there is one member |29 for each section on the multiplying commutator and each member |23 has connected to it a link |240 connecting to a bell crank |25. For each bell crank |25, a toothed selecting bar |25 is provided. These selecting bars have certain teeth thereon disposed as will be more fully explained in connection with the circuit diagram a`nd such teeth are adapted to actuate transversely disposed wingsl r|21 on the contacts. 'I'here are three membersl |21 below the bar assembly and six of such members above the bar assemblies. The lower contacts which are selectively actuated are designated |28a,' |28b and |28c. The upper contacts are respectively designated |29c, |29d to |29h inclusive.

commutator and a `selection made of lcontacts |29c to |2'9h and of |28a to |20c as will be explained in connection with the diagram.

Referring to Fig. 1a there is also provided a column shift selector unit which comprises a commutator generally designated '|30 and adapted Dto be drivenby a differential clutch III which is magnetically tripped in a similar manner to a register wheel clutch. The commutator For the flve sections which pertain to the right hand By the energization of any .section magnet |24 its group of brushes will be brought into cooperation with the multiplying 

